Home / 977,165.40-1,465,748.10-641,242.20

Finding the Fourth Proportional to 977,165.40, 1,465,748.10 and 641,242.20

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Solution

The fourth proportional to 977,165.40, 1,465,748.10 and 641,242.20 is: 961,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,165.40 : 1,465,748.10 = 641,242.20 : x
  2. Step 2: Convert to fraction form
    977,165.40/1,465,748.10 = 641,242.20/x
  3. Step 3: Cross multiply
    977,165.40x = 1,465,748.10 × 641,242.20
  4. Step 4: Simplify right side
    977,165.40x = 939,899,536,289.82
  5. Step 5: Solve for x
    x = 939,899,536,289.82/977,165.40
  6. Step 6: Final answer
    x = 961,863.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.